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Renesas HZK22TR-S-E
- Part No.:
- HZK22TR-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK22TR-S-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZK22TR-S-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power supply circuits, with a nominal zener voltage of 22 V (min 20.9 V, max 23.3 V), dynamic resistance of 65 Ω at 2 mA, maximum power dissipation of 500 mW, and operating junction temperature up to 175°C - used in precision reference and overvoltage protection applications within industrial power supplies.
For engineers reviewing the HZK22TR-S-E datasheet, HZK22TR-S-E pinout, HZK22TR-S-E application, or HZK22TR-S-E equivalent, key selection criteria include zener voltage tolerance (±5.2% at 22 V), low leakage current (≤1 µA at VR = 17 V), thermal coefficient (≈+4.5 mV/°C), LLD surface-mount package compatibility, and compliance with Renesas' Standard quality grade for industrial equipment.
Technical Context
This Zener diode operates in reverse breakdown mode with DC-tested characteristics, delivering stable reference voltage under regulated current conditions (IZ = 2 mA). Its epitaxial planar construction ensures low zener impedance and tight voltage distribution across grade bands (A/B/C), while the LLD package supports high-density PCB assembly and thermal performance up to 175°C junction temperature.
The device exhibits a positive temperature coefficient (~+4.5 mV/°C) typical for 22 V Zeners, enabling predictable drift compensation in temperature-sensitive references. It is not rated for automotive or safety-critical use, and its 500 mW power rating requires derating above 25°C ambient per the published Pd vs. Ta curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.9–23.3 V at IZ = 2 mA - defines stable regulation range for mid-range voltage references |
| Dynamic Resistance (rd) | 65 Ω max at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | ≤1 µA at VR = 17 V - ensures minimal quiescent current in standby or sensing circuits |
| Power Dissipation (Pd) | 500 mW max at Ta = 25°C - sets thermal design margin for PCB copper area and airflow |
| Junction Temperature (Tj) | –55°C to +175°C - enables operation in harsh industrial environments without external heatsinking |
| Temperature Coefficient (γz) | +4.5 mV/°C (typical) - allows predictable voltage drift modeling for calibration compensation |
Pinout & Package
The HZK22TR-S-E is housed in an LLD (Leadless Low-profile Diode) surface-mount package, measuring approximately 1.4 mm diameter × 3.5 mm length, with a mass of 0.027 g. This JEITA-unregistered, Renesas-proprietary SMD package features a cathode band marking and is optimized for automated placement and reflow soldering on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown terminal | Connected to regulated output node; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference return | Biased to ground or lower potential; forms current path through series resistor for biasing |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 65 Ω max ensures tight voltage regulation under varying load currents |
| Wide zener voltage spectrum | 22 V nominal fits mid-range reference needs between 18 V and 24 V systems |
| LLD surface-mount package | Enables high-density layout and compatibility with standard 0805–1206 pick-and-place equipment |
| 500 mW power rating | Supports robust operation in unregulated input stages without active thermal management |
Applications
| Industrial Power Supply Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Providing stable 22 V reference for feedback loop in isolated DC-DC converters used in PLC power modules. IC Role / Device Role / Timing Role: Zener diode functions as passive voltage reference and error-sensing element in secondary-side regulation. Use Value: Tight 20.9–23.3 V tolerance and low rd ensure <±1% output voltage accuracy across line/load variations. | Use Scenario: Clamping transient surges on 24 V industrial bus lines exposed to inductive switching noise. IC Role / Device Role / Timing Role: Acts as shunt protector by conducting excess energy above 22 V to ground during voltage spikes. Use Value: 500 mW rating and 175°C Tj allow sustained clamping without thermal runaway in intermittent fault conditions. |
| Temperature-Compensated Sensor Bias | Low-Power Analog Front-End Reference |
Use Scenario: Biasing thermistor or RTD bridges where predictable VZ drift compensates for sensor nonlinearity. IC Role / Device Role / Timing Role: Provides excitation voltage with known +4.5 mV/°C coefficient to offset sensor temperature coefficients. Use Value: Matched γz enables first-order cancellation of thermal drift without additional op-amps or DACs. | Use Scenario: Generating precise 22 V rail for ADC reference buffers and op-amp biasing in battery-powered data loggers. IC Role / Device Role / Timing Role: Functions as low-noise, low-current voltage source for analog signal conditioning stages. Use Value: ≤1 µA IR minimizes loading on high-impedance divider networks and extends battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5248BS-7-F (Diodes Inc.) | 22 V nominal, 500 mW, SOD-323 package; rd = 30 Ω (lower), IR = 0.1 µA (lower), but Tj = 150°C (lower) | Preferred for space-constrained designs requiring lower leakage and impedance, but less suitable for >150°C ambient | Select when board space is critical and thermal environment is controlled; verify SOD-323 footprint compatibility |
| BZX84-C22 (Nexperia) | 22 V nominal, 350 mW, SOT-23 package; rd = 55 Ω, IR = 0.1 µA, Tj = 150°C, tighter VZ tolerance (±5%) | Better suited for consumer-grade portable electronics due to lower Pd and smaller footprint | Choose for cost-sensitive, lower-power applications where 350 mW suffices and 150°C Tj is acceptable |
Compared with MMBZ5248BS-7-F and BZX84-C22, the HZK22TR-S-E offers higher junction temperature capability (175°C vs. 150°C) and Renesas' Standard-grade qualification for industrial equipment, at the expense of slightly higher rd and IR - making it optimal for thermally demanding, long-lifecycle industrial power designs.
Availability
HZK22TR-S-E is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage clamp circuit, and temperature-compensated sensor bias applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HZK22TR-S-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a Japanese semiconductor manufacturer formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and timing solutions for industrial and embedded markets.
The HZK Series belongs to Renesas' discrete Zener diode product line, engineered specifically for stabilized DC power supply regulation in industrial equipment, with emphasis on reliability, thermal robustness, and consistent voltage tolerance across temperature.
FAQ
What is the exact zener voltage range for HZK22TR-S-E at 2 mA test current?
The HZK22TR-S-E has a guaranteed zener voltage range of 20.9 V to 23.3 V when tested at IZ = 2 mA and Ta = 25°C, corresponding to ±5.2% tolerance around the nominal 22 V rating. This range is specified in the Electrical Characteristics table on page 3 of the official Renesas datasheet (Rev.3.00, May 2003). The HZK22TR-S-E does not have A/B/C grade suffixes - its specification aligns with the base HZK22 entry in the table.
Does HZK22TR-S-E support automotive-grade temperature requirements?
No, the HZK22TR-S-E is rated for Standard quality grade per Renesas' classification, intended for industrial equipment, office automation, and communications gear - not automotive or transportation systems. Its junction temperature rating (175°C) exceeds AEC-Q200 ambient limits, but it lacks automotive qualification documentation, stress testing, or PPAP support. For automotive use, engineers must select Renesas' explicitly qualified "High Quality" parts or consult a Renesas sales office.
What is the package type and physical size of HZK22TR-S-E?
The HZK22TR-S-E uses the LLD (Leadless Low-profile Diode) package: a cylindrical, surface-mount diode with cathode band marking, measuring φ1.4 ± 0.1 mm in diameter and 3.5 mm in length. Its mass is 0.027 g, and it is designed for reflow soldering on standard PCBs. The LLD package is Renesas-proprietary and distinct from JEDEC-standard packages like DO-35 or SOD-123.
How does the temperature coefficient of HZK22TR-S-E affect circuit performance?
The HZK22TR-S-E exhibits a positive temperature coefficient of approximately +4.5 mV/°C near 22 V, meaning its zener voltage increases linearly with rising junction temperature. This behavior is documented in Figure 2 of the datasheet and enables predictable drift compensation - for example, pairing with NTC sensors or designing bias networks that counteract thermal drift. The HZK22TR-S-E's coefficient is stable and repeatable, supporting first-order temperature correction without active components.
Is HZK22TR-S-E RoHS compliant and lead-free?
Yes, the HZK22TR-S-E complies with the EU RoHS Directive, as confirmed by Renesas' environmental policy statements and product declarations effective from 2003 onward. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. Full compliance documentation, including material declarations and test reports, is available through Renesas' official website or authorized distributors upon request for the HZK22TR-S-E.
HZK22TR-S-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZK22TR-S-E FAQ
1.How can I place an order for HZK22TR-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK22TR-S-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HZK22TR-S-E reliable?
The price and inventory of HZK22TR-S-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK22TR-S-E is usually 5 days.
3.What payment methods are accepted for HZK22TR-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK22TR-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK22TR-S-E?
HZK22TR-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK22TR-S-E order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HZK22TR-S-E?
For technical support, including HZK22TR-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK22TR-S-E requirements.
6.How does Aetrix verify that HZK22TR-S-E is sourced from the original manufacturer or authorized distributors?
All HZK22TR-S-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HZK22TR-S-E meets industry standards.
7.What is the process for return or replacement of HZK22TR-S-E?
All HZK22TR-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK22TR-S-E, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HZK22TR-S-E part is unused and in its original packaging.
Return procedure for HZK22TR-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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